|Veröffentlichungsdatum||13. Nov. 2012|
|Eingetragen||29. Aug. 2007|
|Prioritätsdatum||31. Aug. 2006|
|Auch veröffentlicht unter||US20080071911|
|Veröffentlichungsnummer||11897235, 897235, US 8312103 B2, US 8312103B2, US-B2-8312103, US8312103 B2, US8312103B2|
|Erfinder||Kenneth J. Holbrook, Christopher M. Higgins|
|Ursprünglich Bevollmächtigter||Itron, Inc.|
|Zitat exportieren||BiBTeX, EndNote, RefMan|
|Patentzitate (219), Nichtpatentzitate (17), Referenziert von (1), Klassifizierungen (9), Juristische Ereignisse (3)|
|Externe Links: USPTO, USPTO-Zuordnung, Espacenet|
This application claims the benefit of previously filed U.S. Provisional Patent Application entitled “ORCHESTRATION MANAGER,” assigned U.S. Ser. No. 60/841,631, filed Aug. 31, 2006, and which is hereby incorporated herein by reference in its entirety for all purposes.
The present technology generally relates to utility meters. More particularly, in the context of advanced metering infrastructure, the present technology in pertinent part relates to apparatus and methodologies for controlling the allocation of system nodes to a variable number of communication servers to provide system scalability and redundancy.
The general object of metrology is to monitor one or more selected physical phenomena to permit a record of monitored events. Such basic purpose of metrology can be applied to a variety of metering devices used in a number of contexts. One broad area of measurement relates, for example, to utility meters. Such role may also specifically include, in such context, the monitoring of the consumption or production of a variety of forms of energy or other commodities, for example, including but not limited to, electricity, water, gas, or oil.
More particularly concerning electricity meters, mechanical forms of registers have been historically used for outputting accumulated electricity consumption data. Such an approach provided a relatively dependable field device, especially for the basic or relatively lower level task of simply monitoring accumulated kilowatt-hour consumption.
The foregoing basic mechanical form of register was typically limited in its mode of output, so that only a very basic or lower level metrology function was achieved. Subsequently, electronic forms of metrology devices began to be introduced, to permit relatively higher levels of monitoring, involving different forms and modes of data.
In the context of electricity meters specifically, for a variety of management and billing purposes, it became desirable to obtain usage data beyond the basic kilowatt-hour consumption readings available with many electricity meters. For example, additional desired data included rate of electricity consumption, or date and time of consumption (so-called “time of use” data). Solid state devices provided on printed circuit boards, for example, utilizing programmable integrated circuit components, have provided effective tools for implementing many of such higher level monitoring functions desired in the electricity meter context.
In addition to the beneficial introduction of electronic forms of metrology, a variety of electronic registers have been introduced with certain advantages. Still further, other forms of data output have been introduced and are beneficial for certain applications, including wired transmissions, data output via radio frequency transmission, pulse output of data, and telephone line connection via such as modems or cellular linkups.
The advent of such variety and alternatives has often required utility companies to make choices about which technologies to utilize. Such choices have from time to time been made based on philosophical points and preferences and/or based on practical points such as, training and familiarity of field personnel with specific designs.
Another aspect of the progression of technology in such area of metrology is that various retrofit arrangements have been instituted. For example, some attempts have been made to provide basic metering devices with selected more advanced features without having to completely change or replace the basic meter in the field. For example, attempts have been made to outfit a basically mechanical metering device with electronic output of data, such as for facilitating radio telemetry linkages.
Another aspect of the electricity meter industry is that utility companies have large-scale requirements, sometimes involving literally millions of individual meter installations, or data points. Implementing incremental changes in technology, such as retrofitting new features into existing equipment, or attempting to implement changes to basic components which make various components not interchangeable with other configurations already in the field, can generate considerable industry problems.
Electricity meters typically include input circuitry for receiving voltage and current signals at the electrical service. Input circuitry of whatever type or specific design for receiving the electrical service current signals is referred to herein generally as current acquisition circuitry, while input circuitry of whatever type or design for receiving the electrical service voltage signals is referred to herein generally as voltage acquisition circuitry.
Electricity meter input circuitry may be provided with capabilities of monitoring one or more phases, depending on whether monitoring is to be provided in a single or multiphase environment. Moreover, it is desirable that selectively configurable circuitry may be provided so as to enable the provision of new, alternative or upgraded services or processing capabilities within an existing metering device. Such variations in desired monitoring environments or capabilities, however, lead to the requirement that a number of different metrology configurations be devised to accommodate the number of phases required or desired to be monitored or to provide alternative, additional or upgraded processing capability within a utility meter.
More recently a new ANSI protocol, ANSI C12.22, is being developed that may be used to permit open protocol communications among metrology devices from various manufacturers. C12.22 is the designation of the latest subclass of the ANSI C12.xx family of Meter Communication and Data standards presently under development. Presently defined standards include ANSI C12.18 relating to protocol specifications for Type 2 optical ports; ANSI C12.19 relating to Utility industry Meter Data Table definitions; and ANSI C12.21 relating to Plain Old Telephone Service (POTS) transport of C12.19 Data Tables definition. It should be appreciated that while the remainder of the present discussion may describe C12.22 as a standard protocol, that, at least at the time of filing the present application, such protocol is still being developed so that the present disclosure is actually intended to describe an open protocol that may be used as a communications protocol for networked metrology and is referred to for discussion purposes as the C12.22 standard or C12.22 protocol.
C12.22 is an application layer protocol which provides for the transport of C12.19 data tables over any network medium. Current standards for the C12.22 protocol include: authentication and encryption features; addressing methodology providing unique identifiers for corporate, communication, and end device entities; self describing data models; and message routing over heterogeneous networks.
Much as HTTP protocol provides for a common application layer for web browsers, C12.22 provides for a common application layer for metering devices. Benefits of using such a standard include the provision of: a methodology for both session and session-less communications; common data encryption and security; a common addressing mechanism for use over both proprietary and non-proprietary network mediums; interoperability among metering devices within a common communication environment; system integration with third-party devices through common interfaces and gateway abstraction; both 2-way and 1-way communications with end devices; and enhanced security, reliability and speed for transferring meter data over heterogeneous networks.
To understand why utilities are keenly interested in open protocol communications; consider the process and ease of sending e-mails from a laptop computer or a smart phone. Internet providers depend on the use of open protocols to provide e-mail service. E-mails are sent and received as long as e-mail addresses are valid, mail boxes are not full, and communication paths are functional. Most e-mail users have the option of choosing among several internet providers and several technologies, from dial-up to cellular to broadband, depending mostly on the cost, speed, and mobility. The e-mail addresses are in a common format, and the protocols call for the e-mail to be carried by communication carriers without changing the e-mail. The open protocol laid out in the ANSI C.12.22 standard provides the same opportunity for meter communications over networks.
In addition, the desire for increased processing capabilities as well as other considerations including, but not limited to, a desire to provide scalability and redundancy, leads to requirements for supplying adequate communications capabilities to a significant number of meters that may be installed over a significant area often encompassing many square miles, such as in an advanced metering infrastructure environment.
As such, it is desired to provide relatively more universal metrology technology and associated methodologies that permit scalability and redundancy within metrology systems, including those subsisting in, as part of, or functional with, an advanced metering infrastructure environment.
While various aspects and alternative embodiments may be known in the field of utility metering, no one design has emerged that generally encompasses the above-referenced characteristics and other desirable features associated with utility metering technology as herein presented.
In view of the recognized features encountered in the prior art and addressed by the present subject matter, improved apparatus and methodologies for controlling the allocation of system or network nodes to a variable number of communication servers, such as to advantageously provide system scalability and redundancy, have been provided.
In exemplary arrangements, apparatus and methodologies are provided to permit load balancing from within a Collection Engine.
In one of its simpler forms, the present technology provides for periodic rebalancing of server loads to optimize data collection.
One positive aspect of such present rebalancing is that it improves opportunities to contact end devices and to read data from such end devices.
Another positive aspect of such present rebalancing is that it advantageously improves opportunities to receive exception reports from end devices.
Present exemplary subject matter relates to an orchestration manager for distributing utility meter data communications functionality across multiple servers. Such an exemplary orchestration manager preferably may comprise a master relay configured to register and authenticate multiple communication nodes associated with one or more respective utility meters and to assign communication functionality associated with such multiple communication nodes to a plurality of communication servers; and a plurality of communication servers configured to communicate with at least a selected portion of such multiple communication nodes, with each communication server configured to send and receive network communications and to acquire meter data from such multiple communications nodes.
In various present alternatives of such exemplary orchestration manager subject matter, each such communication server may preferably comprise a meter communications host configured to send and receive network communications; a data spooler configured to receive meter data from respective utility meters associated with a communication node; and an exception event manager configured to receive exception events from respective utility meters associated with a communication node.
In still further present alternatives, such meter communications host may be configured to communicate in accordance with an open standard meter communication protocol.
In additional present alternatives, such master relay may be configured to periodically assign communication functionality associated with such multiple communication nodes to such plurality of communication servers, so as to periodically effect load rebalancing among said plurality of communication servers, and further configured to redistribute communication nodes from a failed communication server to an active one of such plurality of communication servers; and to copy to another location state information for the one or more respective meters associated with respective communication nodes previously communicating with a failed communication server.
Another present exemplary embodiment relates to an advanced metering system for controlling allocation of network nodes in a utility metering environment to a variable number of servers, so as to effect efficient utility meter data communications. Such advanced metering system preferably may include a plurality of end devices, at least some of which end devices comprise metrology devices; and a network including a central facility having a collection engine including an orchestration manager for distributing metrology device data communications functionality across multiple servers.
In various alternatives of such advanced metering system, such a system may include multiple communication nodes associated with one or more respective utility meters, which may include at least one communication node operating on a radio network and at least one communication node operating on a power line communications (PLC) network.
It is to be understood that other present exemplary embodiments equally relate to various methodologies, with one such present example relating to a method of controlling allocation of network nodes in a utility metering environment to a variable number of servers, so as to effect efficient utility meter data communications. Such an exemplary present method more particularly may include the steps of: identifying a plurality of communication nodes, each communication node being associated with one or more respective utility meters; assigning to respective selected servers communication functionality associated with respective selected portions of the plurality of communication nodes; and effecting two-way communication between each selected portion of the plurality of communication nodes and its respective assigned server, wherein such two-way communication is conducted in accordance with an open standard meter communication protocol.
Other present exemplary methodologies may include the foregoing, and further comprise a step of receiving meter data from respective utility meters associated with each communication node, a step of receiving exception event data from respective utility meters associated with each communication node, and upon receiving exception event data indicating failure of one or more of the servers, redistributing communication nodes from being assigned to a failed server to being assigned to an active one of the plurality of servers.
Still other present exemplary methodologies and various present alternatives may involve a step of copying to another location state information for the one or more respective meters associated with respective communication nodes previously communicating with a failed server; practicing the above-referenced assigning step on a periodic basis, so as to effect periodic load rebalancing among the plurality of servers; or conducting a further step of tracking actions currently in progress on the plurality of servers; or a step of registering and authenticating each of the plurality of communication nodes.
Yet another positive aspect of the present subject matter is that present rebalancing features also redistribute end devices from failed communications servers to other active servers and to newly activated servers. In pertinent part in such aspects, the present technology (particularly when implemented in an “Orchestration Manager” type arrangement) also advantageously functions as an ANSI standard C12.22 Notification Host as it operates to coordinate registration related processing on communications servers.
Additional objects and advantages of the present subject matter are set forth in, or will be apparent to, those of ordinary skill in the art from the detailed description herein. Also, it should be further appreciated that modifications and variations to the specifically illustrated, referred and discussed features, elements, and steps hereof may be practiced in various embodiments and uses of the present subject matter without departing from the spirit and scope of such subject matter. Variations may include, but are not limited to, substitution of equivalent means, features, or steps for those illustrated, referenced, or discussed, and the functional, operational, or positional reversal of various parts, features, steps, or the like.
Still further, it is to be understood that different embodiments, as well as different presently preferred embodiments, of the present subject matter may include various combinations or configurations of presently disclosed features, steps, or elements, or their equivalents including combinations of features, parts, or steps or configurations thereof not expressly shown in the figures or stated in the detailed description of such figures. Additional embodiments of the present subject matter, not necessarily expressed in the summarized section, may include and incorporate various combinations of aspects of features, components, or steps referenced in the summarized objects above, and/or other features, components, or steps as otherwise discussed in this application. Those of ordinary skill in the art will better appreciate the features and aspects of such embodiments, and others, upon review of the remainder of the specification.
A full and enabling disclosure of the present subject matter, including the best mode thereof, directed to one of ordinary skill in the art, is set forth in the specification, which makes reference to the appended figures, in which:
Repeat use of reference characters throughout the present specification and appended drawings is intended to represent same or analogous features, elements, or steps of the present subject matter.
As discussed in the Summary of the Invention section, the present subject matter is particularly concerned with an improved apparatus and methodologies for controlling the allocation of system nodes to a variable number of communication servers, so as to advantageously provide system scalability and redundancy.
Selected combinations of aspects of the disclosed technology correspond to a plurality of different embodiments of the present subject matter. It should be noted that each of the exemplary embodiments presented and discussed herein should not insinuate limitations of the present subject matter. Features or steps illustrated or described as part of one embodiment may be used in combination with aspects of another embodiment to yield yet further embodiments. Additionally, certain features may be interchanged with similar devices or features not expressly mentioned which perform the same or similar function.
Reference will now be made in detail to the presently preferred embodiments of the subject firmware download methodologies and apparatus. Referring now to the drawings,
Advanced Metering System (AMS) 100 in accordance with the present subject matter is designed to be a comprehensive system for providing advanced metering information and applications to utilities. AMS 100 is build around industry standard protocols and transports, and is designed to work with standards compliant components from third parties.
Major components of AMS 100 include such as exemplary respective meters 142, 144, 146, 148, 152, 154, 156, and 158; one or more radio networks including RF neighborhood area network (RF NAN) 162 and accompanying Radio Relay 172, and power line communications neighborhood area network (PLC NAN) 164 and accompanying PLC Relay 174; an IP (Internet Protocol) based Public Backhaul 180; and a Collection Engine 190. Other components within AMS 100 include a utility LAN 192 and firewall 194 through which communications signals to and from Collection Engine 190 may be transported from and to respective meters 142, 144, 146, 148, 152, 154, 156, and 158 or other devices including, but not limited to, Radio Relay 172 and PLC Relay 174.
AMS 100 is configured to be transparent in a transportation context, such that exemplary respective meters 142, 144, 146, 148, 152, 154, 156, and 158 may be interrogated using Collection Engine 190 regardless of what network infrastructure exists inbetween or among such components. Moreover, due to such transparency, the meters may also respond to Collection Engine 190 in the same manner.
As represented by the illustration in
With reference now to
Orchestration Manager 220 controls the allocation of C12.22 nodes to a variable number of communication servers. Multiple communication servers 212, 214, and 216 may be advantageously used per the present subject matter in conjunction with providing scalability and redundancy. For example, an allocation algorithm per present subject matter may provide load balancing in the Collection Engine 190. Load balancing affects two aspects of data collection: contacting end devices to read data, and receiving exception reports from end devices. Rebalancing functionality per the present subject matter is periodically operative to reallocate system nodes among communication servers, thereby maintaining efficiency of data collection. Such rebalancing functionality also advantageously redistributes end devices from a failed communication server to the other active servers, and/or to a communication server that becomes active. All requests for end-device communications are routed through Orchestration Manager 220. A job system is used to organize and track actions currently in progress on communication servers 212, 214, and 216; to pass large-scale interrogation parameters to such communication servers; to receive status from such communication servers; and in case of failure, to provide persistence of Collection Engine state information over to a backup Orchestration Manager or communication server (not presently illustrated). In its role as a C12.22 Notification Host, Orchestration Manager 220 generally coordinates registration-related processing on communication servers 212, 214, and 216.
Within a C12.22 system, the Master Relay 210 is the coordinating process for the overall system. More specifically, in order to send or receive C12.22 messages, respective nodes must be registered with the Master Relay 210. Before a node is allowed to register though, it must be authenticated. The Authentication Host provides such functionality in the present exemplary embodiment. The Master Relay or station 210 is responsible for the actual meter registration process, communicating with the meter via C12.22 messages.
As will be understood by those of ordinary skill in the art, each of the respective major components of Collection Engine 190 is in turn made up of a series of smaller components and functionality feature sets. The Orchestration Manager or layer 220 provides coordination between such components, and presents a unified, single API (Application Programming Interface) to upstream systems. The Orchestration Manager or system 220 runs as a single master orchestration service (or functionality) and as a series of agents. Each separate physical server will have an orchestration agent to tie it into the larger system. API requests are directed to a master orchestration service (or functionality) which in turn works with the orchestration agents to ensure that requested work or methodology is performed or executed.
The Master Relay/Authentication Host 210 will provide standard C12.22 registration services/functionality as well as integrated C12.22 network authentication functionality/services. One vision for the C12.22 protocol is that, similar to DNS (Domain Name System), a C12.22 master relay may be created which would be shared between multiple utilities, perhaps providing services to an entire region or country. With such approach in mind, implementation of a master relay in accordance with present technology should provide full support for the use of other authentication hosts, and for sending notification messages to registered hosts. Additionally, the Orchestration Manager or layer 220 is preferably implemented so as to be able to receive notifications from master relays from other manufacturers, meaning that an implementation of the present subject matter could be realized employing a master relay from an outside source.
The representative Communications Servers 212, 214, and 216 provide communication functionality with devices, such as to parse and translate such communications, and post or return data as necessary. Communication Servers 212, 214, and 216 thus preferably may comprise a series of services/functionality to accomplish such overall functionality per the present subject matter. Within Communications Servers 212, 214, and 216 are a series of major components: a meter communications host, a data spooler, and an exception event manager. The meter communications host is responsible for listening for network communications and sending network communications. It is the component that both “speaks” C12.22 and “interprets” C12.19 table data. The data spooler and the exception event manager provide mechanisms for streaming meter data and exception events, respectively, to upstream systems.
While the present subject matter has been described in detail with respect to specific embodiments thereof, it will be appreciated that those skilled in the art, upon attaining an understanding of the foregoing may readily produce alterations to, variations of, and equivalents to such embodiments. Accordingly, the scope of the present disclosure is by way of example rather than by way of limitation, and the subject disclosure does not preclude inclusion of such modifications, variations and/or additions to the present subject matter as would be readily apparent to one of ordinary skill in the art.
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|13. Aug. 2008||AS||Assignment|
Owner name: ITRON, INC., WASHINGTON
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HOLBROOK, KENNETH J.;HIGGINS, CHRISTOPHER M.;REEL/FRAME:021383/0537
Effective date: 20080118
|16. Aug. 2011||AS||Assignment|
Owner name: WELLS FARGO BANK, NATIONAL ASSOCIATION, WASHINGTON
Free format text: SECURITY AGREEMENT;ASSIGNOR:ITRON, INC.;REEL/FRAME:026761/0069
Effective date: 20110805
|29. Apr. 2016||FPAY||Fee payment|
Year of fee payment: 4